I gave this an A because in spite of its flaws it fulfilled its primary function masterfully: namely introducing characters and a story arc that holds your attention strongly enough to make you want to come back to the series.

Some call it too slow in other places whilst still throwing in too much at a new viewer for a pilot, but it was this pacing that made me trust JMS as a writer... I felt like he had all the details he needed in place and would only spend time on something if it turned out to be relevant later (future episodes would prove that many things which initially appear irrelevant or throw away come back around much later).

There is so much mystery in the pilot... how can you walk away from the series if you think the writer actually has a good story to tell.